Universal coupling.



949 189. Patented Feb. 15, me.

'H'UGQ'LE NT z,

` www!) Attorney.

lNVENTO' et Mannheim,

` tions UNITED STATES ifAfrEN'r orifice..

HUGO LBNTZ, OF MANNHEIM, GERMANY.

UNIVIMAL COUPLING.

Be it known that I Ht'oo Lnn'rz, n. sul ject of the German Emperor, und residing Germany, have invented u new and useful Universal Coupling; und 'l do hereby declare the followin to e a full, clear, and exact description o the sume.

This invention relutes to universal couplingl, and the object thereof is to reduce the strain on the parte of the cou iling, while rmitting the larte thereof to mutually inclined end to inve a longitudinal dis lacement, and e further object is to pcrmxttlie ready lleemhling und taking apart of the device. l

In the forms of the invention shown ui the drlwings, I ettain seid objects by thc employment of a bueh or un lntermodinhx member which is in engagement with two membere each having two pnrnllel surfaces, the lu of one member being :it right es to thoee of the other member.

y present invention, it ie emily pm sible to couple a rotary pieton, or other rotary member having u compnrntivoly umull opening at its exis of rotation, by menus ot my new universel Joint. end to transmit great power.

construction of the new coupling is exoeedingl simple and economical. The coacting aux' ecce may o rate correctly before the parte are ut togetiiecr, while. in construchereto ore known, the journals mut be carefully turned outend in pairs. As con with prior couplings, my oonltruetion requires much lesa room, and permit oomperatively )ergo journal pressures to be dietributed over a lerge eroe, so tlnit pressure ie aubetantially small et any given int.

In le accompanying drawings I show, diagraxnmattcally, a form of coupling heretofore usually employed, und I also show two embodiments of my invention.

Figure l iu u section 2) showing the employment of a bush and u :heft with a. rotary piston; Fig. 2 is a section of a rotary engine (et the lino 9.-2 of Fig. 1), the easing being shown; Fi 3 is a section nt vabout the hue 3-l of lili l, Figi-4 is a. erupeetive vicwof the matt: Figa. 5 and are like views nf the bueh and of the rotary piston; und Fl 7 reprcwnts, in pera tive, the arts, rea y to be assembled, o a modied. orin of my invention.

Referring to the parts shown in Figs. 1-6,

lpeetdeatton of Letten Ietent. l Application lied August 28, 1909. Serial No. 514.740.

"lballwhomt'tmaycncsrn:

.'hut otherwise free ofV the Willis of Suid lumix.

Intcntwl Fcl). 15, 19.161.

theshuft a hun itu end I provide-(i ,with thaltencd sides, two opposite surfuccs (f anni q) thereof licing'l'ornied purulh-l. lt is nim provided n t thc other oppositi` surfnet-5 with synnnetricnlly-arrnnxcged und rounded swells (c,d). A rotarv pistou n is provided with o ccntrully-locuteli rcctunlrmlur opcnin r (fn). Suid opening lun-ing pu- :llcl surfnet-s (o und [1). luto this opening, l lit :rhollon' bueh (c) inning opposite outer xurfncm, (j andv lr) that und in xnovuhle mul non-rotatuhlc ContactV with the k:surfnccsi o and p nforcanid, inncrvwalls ofthe opening m of the piston. Suid hunh in piv'- otnlly connected with the pieton by lucene of two ivotu ut right :inglesi t.o\thc suufuccs.' j und end, for this iurpouc,\1 muy une arrows j und 1' creu'c'i into hoher,l drilled through the hollow piston at the bottom of vom!- Hiding HlOH. .The ruuurcii uid of the ehn ft 1 is inserted into the meh, the purnllcl hurfnceu (f and y) of uuid cnil hojuein mov nlilc und non-rotutnhle contact with inucr welle or parallel .surhnws (h und i) of tlnl bush, lult otlicrwimirciof thc inner wolle of the hush except nt outer purtrr'ot thc swells r.' und f1 which touch thc remaining inner 'l'ho pnlnlhl ilnwr run'- fnc'cu [1 und o ol liul pieton coincido with the purullcl ouh-r nurture of the huish, :unl nre, it will hc noticed, at right. uuglw to tuparullcl inner uurhuce- It nul e' o lhc lutter. which coincide with tlnyuurtfucce j' undl y. ot" the shaft end.

IIxn'uiinntion of the druuiugi will show. thnt the piston und bueh must rotule together (the loller huving .n pivotul cognermont. with the piston), und thutI the bunh und :shuft olul must also rotutc together (the nhuft. ond huviu n light eliduhlf.noveuieut in thcl hush. unil ulso having u pivotnl en. gngcniont with the lutter, hy rciwou of the oppohitc ,em-ll uml (l). lt ill further lio noticed that thu conlucting urcuu lnztwccu the shuftcull und the mlrroumling rhush nro ttul und quilt'. lurgu. while the. contactingv nrcns lictwecu the lnleh und tito inner surfncch (o und p) of the piston (which houses thel bush) nrc also tint. nud quite iur, c. Both of them: circulnstunces, couvent wir o distribution of the strains ducl to the operation of tlu` ports while lcontrilulting grunt utrcugt-h.

ln asselnblin thc coupling'. it. is noces sary only to slimz the parte together, and to turn the .screws und g. The separation of theparts in equully simple.

According he a tirm one, and the bush may be ion tndinall displaced with the shaft iii ie heb of t e piston n. In such a case, the bush may have an opening r in its up r eide (and a like opening in the bottom side) for the reception of n pin u, the smooth end of which pin engages in un aperture w in the shaft end. In order to provide for necessary l 'tudinal displacement of the parte, the bu may have, at euch side, a pin ai, to slide iii longitudinal grooves in the recess m of the piston.

What l claim is:

1. A universal coupling comprising two members, ca iible of-rotation about axes at :n n iiglc wit resiileolt to cinch othlr and eililcili iavni two ra e sur aces e ara e surfiiccx of hliie 'of said members brdin at right iingleii to those of the other mein -r, lin combination with iin intermediate ineinbei' which haa a pivotal engagement with euch of ihe aforesaid members, at right snglcs with respect to the adjacent pair of par ellcl snrfnccs of the latter.

2. A universal coupling com rising sin outer inemlwr and an inner mem i* ca able of rotation about axes at an angle wit respoot to each other und euch having two para lei surfaces, the parallel surfaces of the outer member being at right anglee to thoee of the inner member, in combination with a bush in thc outer member and around the 'inner one, said bueh having a pivotal engagement. with each member and havin parallel surfaces closely fitting those of ,menibera 3. A universal coupling comprising any manco t0 the modication shown in l outer member and en inner member cepnbife Fig. 7 of my invention theiconnection between the hneh e and the shaft ond b .may i of rotation about axes at an angie witn re spoot to cach other, in combination with a bush in the outer member and sroiind the inner ne, said bush having a slidabie and non-rotatable enga ment with one of said members, a pivote engagement with one member and a ivotal en gemen aigles to that o. oresaid, with the ot er mem- 4. A univemil couplinr/ comprising two members capable of rotation about axes at un angle with respect to each other, and cach having two parallel surfaces, the perallel surfaces of one of seid members being at right nt right angles to those of the other member,

in combination with an intermediate member having two pairs of parallel surfa one fitting those of one member first-nam and the other air of parallel surfaces tting thoee of members.

5. In ooiiibination, a rotatable member having a hollow therein provided with parallel surfaces a bush 'in said hollow and havin parallel outer surfaces in contact with t oee tiret named and also having pariillel inneriiurfacee at right angles to ita outer nurfacee and s sha t having an end rtion provided with parallel outer suracee in contact 'with the aforesaid parallel inner surfaces of the bush.

lIn ieatiniony whereof, l have signed my name to this specification in the presence o! two subscribing witnes.

HUGO LENTZ.

e other of ,the rstfnained 

